Updated

A Chinese teenager has killed eight people and wounded another five in a knife attack in the country's northeast.

The official Xinhua News Agency said the attack took place Wednesday night in Liaoning province.

It did not immediately give any other details in its report Thursday, such as the ages of the victims.

Violent crimes are growing more common in China. There was a string of knife attacks against schoolchildren across the country in early 2010 that killed nearly 20 and wounded more than 50